diff --git a/pkg/diff/internal/osfs/os_posix.go b/pkg/diff/internal/osfs/os_posix.go
index 1c2cf8d..a69fd11 100644
--- a/pkg/diff/internal/osfs/os_posix.go
+++ b/pkg/diff/internal/osfs/os_posix.go
@@ -1,3 +1,6 @@
+//go:build !plan9 && !windows
+// +build !plan9,!windows
+
 /*
 Copyright 2021 Joe Lanford.
 
@@ -16,8 +19,6 @@ limitations under the License.
 NOTE: Originally copied from https://raw.githubusercontent.com/go-git/go-billy/d7a8afccaed297c30f8dff5724dbe422b491dd0d/osfs/os_posix.go
 */
 
-// +build !plan9,!windows
-
 package osfs
 
 import (
diff --git a/pkg/diff/internal/osfs/os_windows.go b/pkg/diff/internal/osfs/os_windows.go
index 1c901bb..8a977ae 100644
--- a/pkg/diff/internal/osfs/os_windows.go
+++ b/pkg/diff/internal/osfs/os_windows.go
@@ -1,3 +1,6 @@
+//go:build windows
+// +build windows
+
 /*
 Copyright 2021 Joe Lanford.
 
@@ -16,8 +19,6 @@ limitations under the License.
 NOTE: Originally copied from https://raw.githubusercontent.com/go-git/go-billy/d7a8afccaed297c30f8dff5724dbe422b491dd0d/osfs/os_windows.go
 */
 
-// +build windows
-
 package osfs
 
 import (